My understanding is that you need a new QR code to set up another eSIM line. For EE that has to be either in store or by post. It's far too risky at this point in any case.
Has anyone else following this thread tried to reset network settings? I'm loathe to attempt that if it's known to make no difference to this issue.
i reverted back to ios 12 as i will be travelling soon and need dual sim.
while i was having ios13, I did reset network settings and strangely it did not work, ie) it did not reset network settings, normally after doing a network setting reset, it will forget all the paired Bluetooth and wifi networks but in my case it did not.
reset network setting, even if it works will not delete you e-sim unless you specify to remove it.
i did a DFU restore to ios12 and my e-sim was intact, no issues.
i just had trouble re-enabling number share to the watch and had to call the carrier.
my scenario with ios 13 and dual sim is the phone knows there is a second sim and if someone calls your second sim the phone will ring, it is just you cant call them back in your second number.
if you have to use the second number, then you will have to go to settings and change the second number to primary and turn off the e-sim plan to make the physical sim active and could make outbound calls on the physical sim.
too much work, so reverted back to ios12
will update when the GM is available